Physics 2001 Neco Past Questions and Answers

Question 6 :

• NECO 2001

Which statement is NOT correct about molecules?

A. The number of molecules in a unit volume of a solid is greater than that in a unit volume of a liquid or gas.
B. Molecules are made up of atoms
C. The force of attraction between two molecules of a solid is greater than that between two molecules of a liquid or gas
D. Molecules of gases are in regular motion
E. Molecules of a solid vibrate about their mean positions.

Question 7 :

• NECO 2001

The inside of a vacuum flask is usually coated with silver to reduce heat loss by ____________

A. Condensation
B. Conduction
C. Convection
D. Evaporation
E. Radiation

Question 8 :

• NECO 2001

What is the angular velocity of an object in a horizontal circular path of radius 1.5m with a constant speed of 12ms^-1?

A. 1.6 rads^-1
B. 4.0 rads^-1
C. 8.0 rads^-1
D. 16.0rads^-1
E. 32.0 rads^-1

Question 9 :

• NECO 2001

A wave is represented by the equation y = 0.5 sin 0.4 Ω(X - 60t), where the distance (X) is measured in centimetres and time (t) in seconds. What is the wave length of the wave?

A. 0.2cm
B. 0.4cm
C. 0.8cm
D. 5.0cm
E. 10.0cm

Question 10 :

• NECO 2001

The magnetic effect of a current-carrying coil is NOT utilized in the making of a/an ____________

A. Carbon microphone
B. Electric bells
C. Magnetic relay
D. Telephone earpiece
E. Thermostat